INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-next-kasan-gce-5,10.128.0.9' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  161.331614] device gre0 entered promiscuous mode
[  215.008045] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 53s!
[  215.016224] Showing busy workqueues and worker pools:
[  215.021445] workqueue events: flags=0x0
[  215.025484]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  215.031683]     pending: cache_reap
[  215.035317] workqueue events_power_efficient: flags=0x80
[  215.040753]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  215.046887]     pending: do_cache_clean
[  215.050866] workqueue mm_percpu_wq: flags=0x8
[  215.055347]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  215.061484]     pending: vmstat_update
[  215.065393] workqueue ipv6_addrconf: flags=0x40008
[  215.070314]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1
[  215.076279]     pending: addrconf_dad_work